I'd like to post a thumbs up to Graeme Wilkins from Wilkins Performance Engines. He has done a lot of engine work for me over the years and his work has always been of the highest quality. He's also a top bloke and really knows his stuff.
If you ever need performance work done, seek him out. He has recently moved to Upper Colo, which is a long drive outside of Sydney, though it is worth going out there. It's best to call him to arrange a time before you visit.
He was surprised that he hasn't lost any work because of his move. I suppose that others also see the value of getting quality work done.
http://www.wilkinsengineering.com.au/

Tell him to update his website
I've been keen to drop a block down to him for a clean because he was Seven Hills based, but Upper Colo is a hike. 

He's too busy building engines to bother with his web site

I was going to go to him for my block, but my machinist who has done a few things for me and my girlfriend is in castle hill so a little more easier to access.

I have only heard good thinks from Wilkins but. And they way you're talking about it, sounds like his at broken hill or near Coffs Harbour.

Only a couple of hours from his old shop :)

When you go there, you'll realise what I mean. I does seem like it is at Broken Hill...